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BaseRepresentation
bin11010101101000000101101
3111011122100022
4122231000231
53243000414
6410011525
7113333324
oct32550055
914148308
107000109
113a51316
122416ba5
1315b129c
14d030bb
1593418e

7000109 has 2 divisors, whose sum is σ = 7000110. Its totient is φ = 7000108.

The previous prime is 7000087. The next prime is 7000121. The reversal of 7000109 is 9010007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 354025 = 2578^2 + 595^2 .

It is an emirp because it is prime and its reverse (9010007) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7000109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7000129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3500054 + 3500055.

It is an arithmetic number, because the mean of its divisors is an integer number (3500055).

Almost surely, 27000109 is an apocalyptic number.

It is an amenable number.

7000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

7000109 is an equidigital number, since it uses as much as digits as its factorization.

7000109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 7000109 is about 2645.7719100482. The cubic root of 7000109 is about 191.2941111745.

The spelling of 7000109 in words is "seven million, one hundred nine", and thus it is an aban number.